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No. 770,681. PATENTED SEPT. 20, 190 4. E. DENEGRE.

CAR AXLE BOX.

APPLICATION FILED JULY 12, 1902.

N0 MODEL. 2 SHEETS-SHEET 1.

Witnesaea W EIUnvEntcE. v Ema F'E H 1,- ALtUFT'IEHE No. 770,681.PATENTED SEPT. 20, 1904. DENEGRE.

GAR AXLE BOX.

APPLIUATION FILED JULY 12, 1902. NO MODEL. 4 2 sums-51mm 2.

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UNITED STATES Patented September 20, 1904.

PATENT OFFICE.

EDWARD DENEGRE, OF CHICAGO, ILLINOIS, ASSIGNOR TO MOCORD & COMPANY, OFCHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

CAR-AXLE BOX.

SPECIFICATION forming part of Letters Patent No. 770,681, datedSeptember 20, 1904.

Application filed July 12, 1902. Serial No. 115,277. (No model.)

To all whom, it may concern.-

Be it known that I, EDWARD DENEGRE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Car-Axle Boxes, (CaseNo. 3,) of which the following is a full, clear, concise, and exactdescription, reference being had. to the accompanying drawings, forminga part of this specification.

My invention relates to car-axle boxes, and has for its object theprovision of an improved dust-guard therefor and also of improved meansfor holding the dust-guard in place.

Generally speaking, my invention relates to that form of dust-guardsknown as outside dust-guards*that is,-such that may be readily appliedto axle-boxes, which boxes need not be structurally modified upon theirinteriors in order to permit of the application of the dust-guards.

Generally speaking, my invention comprises in one of its embodiments adust-guard of this character formed in separable sections, whereby itmay be readily placed about the car-axle and caused to close the openingin the car-axle box into which the car-axle projects. In practicing thisfeature of my invention I preferably form the dust-guard in two equalsections that meet on a line coincident with a diameter of the axle, sothat each half may be readily removed from a space about the axle, andin order to prevent any displacement between the sections when assembledthey are provided with interlocking means serving to maintain the sametogether, which interlocking means are preferably in the form of earsand lugs engaging recessed ears, one lug,with its engaging ear,beingpreferably diametrically opposite the other lug with its engaging ear,the two ears being desirably provided upon one section of the dustguard,while the two lugs are desirably provided upon a companion section. Theinterlocking lugs and ears are carried upon extensions of the dust-guardsections, which extensions are held in place by means of stripmetalsprings that pass through lugs carried by the car-axle box and securethe said extensions close to the car-axle box to form a close fittherewith. The bore of the composite dust-guard is faced with somesuitable material having direct contact with the car-axle, serving topermit the car-axle to rotate within the bore of the dust-guard withoutmaterial friction, while at the same time preventing the admission ofdust through the bore of the dust-guard.

I preferably employ as a packing for the dust-guards annular strips ofsuitable material affording little friction and constituting asufficient barrier to dust, which strips are preferably of leather. Inorder that these strips may be properly centered with respect to thebore of the dust-guard and axle, I provide an annular rim which isconcentric with the axle and the hole in the dust-guard, which annularrim surrounds the outer peripheries of the protecting-strips, while atthe same time serving to properly center the same. In order to preventthe packing-strips from buckling, rigid keeper-plates are mounted uponthe outside thereof, rivets passing through the keeperplates and thestrips of packing material into the dust-guard body or plate, thesekeeperplates being substantially rigid,serving to confine thepacking-strips to their normal planes between the rivets.

A dust-guard body or plate is made in sections. A plurality of annularstrips of leather is preferably employed, which strips are so laid as tobreak joints, by which construction not only may the plates of thedust-guard be separated, but the packing-rings as well, the keeper-platepermitting this separation, as in such instance it is also made insections, permitting separation between the dustguard plate-sections.

I will explain my invention more fully by reference to the accompanyingdrawings, in which Figure 1 is a side elevation of a car-axle box havingassociated therewith the device of my invention. Fig. 2 is a perspectiveview] of a preferred form of dust-guard constructed 3 in accordance withthe invention. Fig. 3 is an end view of the construction shown in Fig. 1looking toward the dust-guard. Fig. 4E isa sectional view on line 4 4 ofFig. 3; the caraxle being shown in place, while one of the sections ofthe dust-guard is completely're moved. Fig 5 is a sectional view lookingin the direction of the arrows 5 5 of Fig. 3. Fig. 6 is a sectional viewon line 6 f Fig. 2. Like parts are indicated by similar characters ofreference throughout the different figures.

The car-axle box to which the device of my invention may be applied maybe of any suitable character, that illustrated being a wellknown type.This car-axle box is desirably provided with a marginal lug 60,extending across its top and rear. The rear wall of the car-axle box isprovided with a bore through which the car-axle 5 passes, this car-axlehaving interposed between the same and the top wall of the box asuitable bearing construction 0, as is well understood by those skilledin the art. The dust-guard has two platesections d cl, each provided atits upper end with a book 6, that is engaged with the marginal lug a, asillustrated, the purpose of which lug and hooks will be more fullyhereinafter set forth. The rear wall of the caraxle box is provided withlugs f f at its top and bottom portions, through whichhorizontallydisposed strip-metal springs g g are passed. whereby thesectional dust-guard plate is held against the rear wall of the car-axlebox. In order that the dust-guard plate may be formed in separablesections, which at the same time when assembled may be retained in theirproper relative positions, these sections are provided with someinterlocking agencyas, for example, the lugs lb lb, carried upon oneplate, engaging correspondingly-recessed ears 2' 2', mounted upon theother plate. The lugs h h by passing through the recesses in the ears'2; 2' prevent relative vertical displacement between the sections ofthe dust-guard plate and also relative lateral displacement, thesections of the dust-guard plate forming practically a single dust-guardplate when assembled in the manner set forth. In the event of breakageof the upper spring g or of a buckling tendency between theplate-sections or any cause tending to effect an undue displacement ofthe dust-guard plate the hooks e a come into service to act as apreventive against these undesirable consequences. The dust-guard plateis provided with a packing 7;, that projects within the aperture or borethrough the plate and snugly surrounds the car-axle, and in order thatthe packing may be readily placed in position and may be alwaysaccessible for purposes of repair and re placement I mount the samedirectly upon the rear face of the dust-guard plate, and in order thatthe packing may always be centered properly there is employed an annularrim Z, projecting rearwardly from the plate and concentrically disposedwith respect to the axle and with respect to the center of the borethrough the dust-guard plate.

The packing 7a is preferably made up of an nular strips of leather,which may be formed in sections and which may be riveted to thedust-guard plate at Z Z. In order to prevent the strips from bucklingbetween the rivets, there is preferably employed a keeper-plate m,preferably made sufficiently rigid to properly retain thepacking-strips. In the embodiment of the invention shown the dustguardplate being formed in separable sections the packing-strips and thekeeper-plates are also preferably formed in separable sections.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A dust-guard for car-axle boxes, coniprising aplurality of separable sections, and interlocking deviceson saidsections for temporarily locking the sections together, the differentparts of said interlocking devices being fixed to said two separablesections, substantially as described.

2. A dust-guard for car-axle boxes, comprising a plurality of separablesections, and interlocking devices on said sections for temporarilylocking the same together,the cooperating parts of said interlockingdevices being on the faces of said two separable sections.

3. A dust-guard for car-axle boxes, comprising a plurality of separablesections, and interlocking devices on adjacent edges of said sectionsfor locking the same together, substantially as described.

4. A dust-guard for car-axle boxes, comprising a pair of separablesections separable along a line axial of the axle, and interlockingdevices on opposite sides of the axle and on the adjacent edges of theseparable sections, said interlocking devices being adapted to engageone another to hold the sections of the guard temporarily againstseparation, substantially as described.

5. A dust-guard for car-axle boxes, comprising a plate formed in twosections, separable alonga line substantially coincident with adiameterof the axle, the said plate-sections being provided with lugs it, it,and ears 2', 2', whereby they are separably joined, substantially asdescribed 6. The combination with a car-axle box, of a dust-guardcomprising a plurality of separable sections, interlocking devices onsaid sections for locking the same temporarily together, and means forholding the guard in position on the box, said means being also arrangedto hold the locking devices in a locked condition, substantially asdescribed.

7. The combination with a car-axle box, of a dust-guard comprising aplurality of separable sections, locking devices on said sections forinterlocking the same together, said devices consisting of sockets andprojections adapted to enter said sockets, strips or straps extendedacross the face of the guard for holding the same in position on thebox, and means for holding said strips or straps in position also acrosssaid sockets, whereby the projections are held in position therein,substantially as described.

8. The combination With a car-axle box, of a dustguard comprising aplate formed in composite sections, and strip-metal springs carried uponthe rear of the car-axle box and serving to engage the dust-guard plateto hold the same close to the car-axle box, the sections of the saiddust-guard plate being provided with interlocking means, and thestripmetal springs being arranged to hold said interlocking means inengagement, substantially as described.

9. The combination With a car-axle box, of a dust-guard comprising aplate formed in composite sections, and strip-metal springs carriedupon'the rear of the car-axle box and serving to engage the dust-guardplate to hold the same close to the car-axle box, the sections of thesaid dust-guard plate carrying lugs and ears, whereby theyare separablyunited, substantially as described.

10. The combination With the plate of a dust-guard for car-axle boxes,of a rim projecting from the rear thereof, annular packing inclosed bythe rim and centered thereby, and a keeper-plate inside of the rimfastened to the dust-guard plate, the packing being interposed betweenthe keeper-plate and the dust-guard plate, substantially as described.

In Witness whereof I hereunto subscribe my name this 26th day of June,A. D. 1902.

EDWARD DENEGRE.

W itnesses:

HARVEY L. I-IANsoN, JOHN STAHR.

